
"""在 Python 中输入新的布尔运算，在你敲下回车之前先把答案说出来，
别思考，说出你脑子里第一个冒出来的答案。写下来，然后敲回车。算一算你对了多少，错了多少。"""
print(3 + 1 )
print(3 - 1 )
print(3 * 1 )
print(3 / 1 )
print(3 % 1 )
print(3 == 1 )
print(3 != 1 )
print(3 <= 1 )
print(3 >= 1 )

list1 = [1,3,5,8]
s = 2
print( s in list1)

print( s not in list1)
print( s or list1)
print( s and list1)






